Just wanted to note that there is currently a limited time free download of a nice 210 page ebook called "The Art and Science of CSS" that some might find helpful at sitepoint.com.
They have a Twitter way to get it as well as a "fill in your email for a download link" method on that page if you don't use Twitter (like me).
I just downloaded it this morning and haven't had a chance to look at it much, but it appears to be a very nicely done and informative book- and if it like a Photoshop ebook they offered free about a year ago it will be good.
They say it will be available for free download for 14 days BTW.
It looks like I missed the earlier posting when I started a thread- sorry macsig! Since the mods moved your original posting to this category from wherever it was made, there are now two threads on it with all the same posts somehow! Geez!
EDIT: Posting to either thread adds the post to both of them- go figure.